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Intelligence Agencies
Overview of intelligence and law-enforcement agencies

This page contains an non-exhaustive overview of the various intelligence and law-enforcement agencies in the world. If possible, a link to their website or to Wikipedia is provided. The list is by no means complete and is only intended as a placeholder for information about agencies that are of interest in relation to cryptography or to other subjects featured on this website.

Contents of this page
Australia
AGO   Australian Geospatial-Intelligence Organisation
Within the Five Eyes alliance, the AGO is responsible for Geo Intelligence.
ASD   Australian Signals Directorate
Cyber security and signals defence organisations. Part of the Australian Department of Defence. Within the Five Eyes alliance, the ASD is responsible for Signals Intelligence (SIGINT).  Website
ASIO   Australian Security and Intelligence Organisation
Civil security and intelligence agency. Within the Five Eyes alliance, the ASIO is responsible for Security Intelligence.  Website
ASIS   Australian Secret Intelligence Service
Australia's secret foreign intelligence collecting agency. Within the Five Eyes alliance, the ASIS is responsible for Human Intelligence (HUMINT).  Website
DIO   Defence Intelligence Organisation
Within the Five Eyes alliance, the DIO is responsible for Defense Intelligence.  Website
DSD   Defense Signals Directorate
Main Austrialian cryptologic authority. In 2013 renamed Australian Signals Directorate (ASD).
Alliances
Belgium
ADIV   Algemene Dienst Inlichtingen en Veiligheid
Belgian Military Intelligence Service operating under the authority of the Ministry of Defense. Known in Dutch as the Algemene Dienst Inlichtingen en Veiligheid (ADIV) and in French as the Service Général du Renseignement et de la Sécurité (SGR). In English, the agency is often referred to as the General Intelligence and Security Service (GISS).
SDRA   Service de Documentation, Renseignement et Action
Secret department of the Belgian Military Intelligence Service ADIV that consisted of many different divisions. SDRA III dealt with counter-intelligence and counter-subversion.
SGR   Service Général du Renseignement et de la Sécurité ADIV
VSSE   Veiligheid van de Staat, Sûreté de l'État
Belgian State Security Service operating as a civilian agency under the authority of the Ministry of Justice.
Alliances
Bulgaria
DANS   State Agency for National Security
The State Agency for National Security, commonly abbreviated to ДАНС (DANS), is a Bulgarian state agency, subordinated to the Bulgarian Council of Ministers, tasked with the implementation of the policy of national security.
DAR   Durjavna Agencia Razuznavane
The State Intelligence Agency (SIA), is a Bulgarian foreign intelligence service, which provides the government of Bulgaria with intelligence, assesments, analyses and prognoses, related to the national security, interests and priorities.
KDS   Komitet za dǎržavna sigurnost
Committee for State Security, commonly abbreviated to КДС, CSS or KDS, popularly known as State Security, was the name of the Bulgarian secret service during the Communist rule of Bulgaria and during the Cold War, until 1989.  Wikipedia
Alliances
Canada
CFINTCOM   Canadian Forces Intelligence Command
(French: COMRENSFC) Within the Five Eyes alliance, the CFINTCOM is responsible for Defense Intelligence and Geo Intelligence.
CSE   Communications Security Establishment
Canadian Government's national cryptologic agency, administered under the Department of National Defence (DND). Also responsible for foreign signals intelligence (SIGINT). Formerly known as Communications Security Establishment Canada (CSEC). Within the Five Eyes alliance, the CSE is also responsible for Signal Intelligence.  Wikipedia
CSIS   Canadian Security Intelligence Service
Canada's national security establishment. Within the Five Eyes alliance, the CSIS is responsible for Human Intelligence and Security Intelligence.  Website
CST   Centre de la sécurité des Télécommunications CSE
French name of the CSE.
SCEC   Communications Security Establishment Canada CSE
SCRS   Service canedien du renseignement de sécurité CSIS
French name of the Canadian Security Intelligence Service (CSIS).
RCMP   Royal Canadian Mounted Police
Canadian National Police Organisation.  Wikipedia  Website
Alliances
Cuba
DGI   Dirección General de Inteligencia
Main state intelligence agency of the government of Cuba, founded in 1961 by the Cuban Ministry of the Interior, following the Cuban Revolution. During the Cold War, the DGI had strong ties with USSR intelligence agencies like the KGB and the GRU. Since 1989, the DGI is known as Dirección de Inteligencia (DI) or G2.
DI   Dirección de Inteligencia
The Dirección de Inteligencia (Intelligence Directorate), is the main state intelligence agency of the government of Cuba, since 1989. Also known as G2.
G2   Dirección de Inteligencia
Czechoslovakia
Czechoslovakia, or Czecho-Slovakia, was a sovereign state in Central Europe that existed from October 1918 to 1 January 1993, after which it was peacefully dissoluted into the Czech Republic and Slovakia. From 1948 to 1990, Czechoslovakia was under the influence of the former USSR and was part of the Warsaw Pact. It played a role in international espionage during the Cold War.

Správa 1   Department 1
1st Department of the Czechoslovakian Ministry of Internal Affairs, taksed with intelligence gathering, or espionage (Czech: Rozviedka).
Sometimes written as 1 Správa or Správa I.
Správa 2   Department 2
2nd Department of the Czechoslovakian Ministry of Internal Affairs, taksed with counter-intelligence, or counter-espionage (Czech: Kontrarozviedka). Sometimes written as 2 Správa or Správa II.
Správa 4   Department 4
4th Department of the Czechoslovakian Ministry of Internal Affairs, taksed with surveillance. Sometimes written as 4 Správa or Správa IV.
Správa 6   Department 6
6th Department of the Czechoslovakian Ministry of Internal Affairs, taksed with the development of communications technology (Czech: Spojovacia Technika). Sometimes written as 6 Správa or Správa VI.
StB   Statni Bezpecnost
Secret (political) plainclothes police of former Czechoslovakia, also known as the civil intelligence agency, during the communist regime (1945-1990), operating under and controlled by the Czechoslovakian federal Ministry of Interior. The name is officially written as Státní bezpečnost (Czech) or Štátna bezpečnost (Slovak).  Wikipedia
ZS GŠ   Zpravodajská Správa Generálního Štábu
Military intelligence agency of the former Czechoslovakia during the communist regime (1945-1992).  Wikipedia
Alliances
Denmark
AIC   Army Intelligence Center HEC
DDIS   Danish Defence Intelligence Service FE
DSIS   Danish Security and Intelligence Service PET
FE   Forsvarets Efterretningstjeneste
Danish Defence Intelligence Service (DDIS).  Wikipedia  Website
HEC   Hærens Efterretningscenter
Army Intelligence Center (AIC).
PET   Politiets Efterretningstjeneste
Danish Security and Intelligence Service (DSIS).
Alliances
France
ANSSI   Agence nationale de la sécurité des systèmes d'information
National Cybersecurity Agency of France. Established on 7 July 2009 and responsible for computer security. Successor of the DCSSI and before that the SCSSI.  Website  Wikipedia
BCRA   Bureau Central de Renseignements et d'Action
Central Bureau of Intelligence and Operations. Active during WWII from 1940 to 1943, as the successor to the pre-war Deuxième Bureau. Established on 1 July 1940 as SR, renamed BCRAM in April 1941, and then BCRA in January 1942 — the name by which it is best known (even after WWII). Merged in 1943 with the clandestine service of the CIG into DGSS, which later became the DGER and finally the post-war SDECE.  Wikipedia
BCRAM   Bureau Central de Renseignements et d'Action Militaire
Central Bureau of Military Intelligence and Operations. Military intelligence service of Free France — the French govermment-in-exile in London during WWII — established on 1 July 1940 as SR and renamed to BCRAM in April 1941, and again in January 1942 to BCRA.
CIG   Centre d'information gouvernemental
Center for Government Information. Military intelligence service in Vichy France, from 1940 to 1943.
2e Bureau   Deuxième Bureau
Full name: Deuxième Bureau de l'État-major général (second bureau of the General Staff). France's external military intelligence agency from 1871 to 1940. Dissolved – together with the Third Republic – at the outbreak of WWII in France. Succeeded by the CIG in Vichy France, and the BCRA in Free France (the French government-in-exile in London). Nevertheless, the name outlives the organisation as a generic label for the country's intelligence service.  Wikipedia
DGER   Direction Générale des études et recherches
General Directorate for Studies and Research. French military intelligence service from 1944 to 1945, established in 1943 as DGSS. Renamed SDECE in 1946.  Wikipedia
DGSE   Direction générale de la Sécurité extérieur
General Directorate for External Security. France's external intellige agency, equivalent to MI6 in the UK and the CIA in the USA.  Wikipedia
DGSI   Direction générale de la Sécurité intérieure
General Directorate for Internal Security. Intelligence service charged with counter-espionage, counter-terrorism, countering cybercrime and surveillance of potentially threatening groups, organisations and social phenomena.  Wikipedia
DGSS   Direction Générale des Services Spéciaux
General Directorate for Special Services. French military intelligence service from 1943 to 1944, after a merger of the CIG and BCRA, controlled from the French government-in-exile in London. In 1944 renamed DGER, but neverthemess called BCRA by many people.
DPSD   Direction de la Protection et de la Sécurité de la Défense
Directorate for protection security and defense. French military security agency, charged with counter-intelligence, general intelligence, counter-terrorism and counter-subversion concerning national defense.  Wikipedia
DRM   Direction du renseignement militaire
Directorate of Military Intelligence. French intelligence agency charged with collecting and centralizing military intelligence information for the French Armed Forces. Established in 1992, equivalent to DIA (USA), DI (UK) and the GRU (Russia).  Wikipedia
SDECE   Service de Documentation Extérieure et de Contre-Espionnage
Foreign Documentation and Counter-Espionage Service. Established in 1946 as the successor to the BCRA (1940), DGSS (1943) and DGER (1944).  Wikipedia
SR   Service de Renseignements
Military intelligence service of Free France — the French govermment-in-exile in London during WWII — established on 1 July 1940. Renamed to BCRAM in April 1941.
Alliances
East Germany   DDR
The German Democratic Republic, or GDR (German: Deutsche Demokratische Rebublik, or DDR), was one of the countries of the former Warsaw Pact. Following the fall of the Berlin Wall in 1989, East Germany was reunited with West Germany the following year (1990).  Wikipedia

Ministerium für Staatssicherheit (MfS) also known as the Stasi
HVA   Hauptverwaltung Aufklärung
Department of the Stasi, responsible for foreign and domestic espionage and for covert operations in foreign countries. Between 1956 and 1986, the HVA was headed by the mysterious Markus Wolf.
MfS   Ministerium für Staatssicherheit More
Ministery for State Security of the former DDR (East Germany); one of most effective and repressive intelligence and secret police agencies in the world. The agency is commonly known as Stasi, which is the abbreviation of Staats-Sicherheit, and had its headquarters in East-Berlin. The Stasi had strong ties with the Russian intelligence service KGB.  More  Wikipedia  Wikipedia Germany
Stasi   Staatssicherheit MfS
 More
Germany   until 1945
For current German agencies, see  Germany after 1945

Abwehr   German Intelligence and Security Service between 1921 and 1944. During WWII, the Abwehr was part of the German Wehrmacht and was led by Admiral Canaris who was strongly anti-Nazi. The Abwehr was dissolved in 1944 due to incompetence and became part of the Sicherheitsdienst (SD) under the RSHA.  More  Wikipedia
FHO   Fremde Heere Ost
Foreign Armies East, was a military intelligence organisation in Nazi Germany from 1938 to 1945, headed by Reinhard Gehlen. After WWII, the FHO became the Organisation Gehlen (OG), which was later renamed to BND.  Wikipedia
Gestapo   Geheime Staatspolizei
Official Secret Police of Nazi Germany and German-occupied Europe, established by Hermann Göring in 1933 and dissolved in 1945 at the end of WWII. It was considered a sister organisation of the SD.  Wikipedia
RSHA   Reichssicherheitshauptamt
Main Security Office of the German Third Reich during WWII, under Heinrich Himmler, who was the head of the German Police and also head of the Nazi party's Schutzstaffel (SS). The RSHA was established on 27 September 1939 and comprised the Sicherheits­dienst (SD) and the Sicherheitspolizei (SiPo), with the latter consisting of the Geheime Staatspolizei (Gestapo) and the Krimalpolizei (Kripo). On 18 February 1944, the RSHA took over the activities of the Abwehr as well.  Wikipedia
SD   Sicherheitsdienst
The SD was the Intelligence and Security Organisation of Hitler's political party, the NSDAP, from 1931 to 1945. Following the Nuremberg Trials after WWII had ended, the SD was declared a criminal organisation.  Wikipedia
Germany   after 1945
For wartime German agencies, see  Germany until 1945

BND
BSI
BGS   Bundesgrenzschutz
Federal Border Guard of (West) Germany after WWII. Renamed in July 2005 to Bundespolizei (Federal Police) or BPOL.  Wikipedia
BKA   Bundeskriminalamt
Federal Criminal Police Office.  Wikipedia  Website
BND   Bundesnachrichtendienst
The BND (English: Federal Intelligence Service) is the German Foreign Intelligence Agency, established in 1956 as the successor to Organisation Gehlen (OG). The BND is known within the CIA by its code name CASCOPE.  More  Wikipedia  Website
BPOL   Bundespolizei
Federal Police force of Germany, after renaming the Bundesgrenzschutz (BGS) to Bundespolizei (BPOL).
BSI   Bundesamt für Sicherheit in der Informationstechnik
Federal Office for Information Security. Independent government organisation (previouslu under BND). Successor to ZfCh and ZSI since 1991.  More  Website
BfV   Bundesamt für Verfassungsschutz
Federal Office for the Protection of the Constitution  Website
LfV   Landesämter für Verfassungsschutz (16 units)
State Offices for the Protection of the Constitution (one in each of the federal states). The activities are coordinated by the BfV.
MAD   Militärischer Abschirmdienst
Military Counter-intelligence Service (Military Screening Service).  Website
OG   Organisation Gehlen
Also known as ORG. West-German secret intelligence agency, established in June 1946 by US occupation authorities in the US Zone of Germany. The agency consisted of former members of the 12th Department of the German Army General Staff (Foreign Armies East) and carried the name of Wehrmacht generalmajor Reinhard Gehlen, wo had been head of German military intelligence in the Eastern section during WWII. After much critisism for hiring former Nazis, the organisation was dissolved into the current Bundesnachrichtendienst (BND) on 1 April 1956. Reinhard Gehlen stayed on as president of the organisation until his retirement in 1968.  History  Wikipedia
ORG   Organisation Gehlen OG
ZfCh   Zentralstelle für das Chiffrierwesen
Cryptographic authority of the German Government. Initially independent, but since 1973 part of Directorate IV of the BND. Later renamed Zentralstelle für Sicherheit in der Informationstechnik (ZSI), which in 1991 became the BSI.  More
ZSI   Zentralstelle für Sicherheit in der Informationstechnik
Central Office for Information Security. Since 1989 the successor to ZfCh. In 1991, succeeded by the BSI.
Alliances
Hungary
AH   Alkotmányvédelmi Hivatal
Constitution Protection Office. Current Hungarian internal security intelligence agency, established in 2010 as the successor to the NBSZ. Responsible for counterintelligence, anticorruption, economic security and related proactive measures. Also investigative body against organized crime and subversion.  Website  Wikipedia
2010   AH → Alkotmányvédelmi Hivatal
Constitution Protection Office. Current Hungarian internal security intelligence agency, established in 2010 as the successor to the NBSZ. Responsible for counterintelligence, anticorruption, economic security and related proactive measures. Also investigative body against organized crime and subversion.  Website  Wikipedia
ÁVH   Államvedélmi Hatóság
State Protection Autority of Hungary, established in 1950 as the successor to the ÁVO. Hunted down everyone who was vaguely against the rule of Moscow over Hungary. Dissolved in 1956. After this, Hungary never had another Secret State Police. The AVO was located at 60 Andrassy Place in Budapest, in the same building where the Hungarian Nazi Arrow Cross Party was housed during WWII. The building is now a museum and is known as 'House of Terror'.  Wikipedia
ÁVO   Államvedélmi Osztálya
Hungarian State Police State Protection Department, established in 1946 as the successor of the PRO. Succeeded in 1950 by the ÁVH
BAS   Belügyminisztérium Állambiztonsági Szervek
State Security Department of the Ministry of Interior of Hungary, active from 1956-1990. Also known as Belügyminisztérium III (Ministry of Internal Affairs III) with various Departments, such as III/I (espionage) and III/II (counter-espionage).
IH   Információs Hivatal
Information Office. Current intelligence agency of Hungary, involved in non-military intelligence gathering, mainly abroad.  Wikipedia
KNBSZ   Katonai Nemzetbiztonsági Szolgálat
Military National Security Service.
NBSZ   Nemzetbiztonsági Szakszolgálat
Special Service for National Security.
NH   Nemzetbiztonsági Hivatal
Office of National Security. Former Internal Security Intelligence Agency of Hungary. Established in 1990 and succeeded by the AH in 2010.
PRO   Budapesti Fokapitányság Politikai Rendészeti Osztálya
Police Main Command Political Department of Hungary in 1945. Succeeded by the ÁVO.
Alliances
Italy
SIM   Servizio Informazioni Militare
The Servizio Informazioni Militare (SIM) was Italian's military intelligence organisation for the Regio Esercito (Royal Army) of the Regno d'Italia (Kingdom of Italy) from 1900 to 1946, and of the Italian Republic from 1946 to 1949. During WWII, it was fascist dictator Benito Mussolini's equivalent of the German Abwehr.
Alliances
Netherlands
Algemene Inlichtingen and Veiligheidsdienst (General Intelligence and Security Service)
AIVD   Algemene Inlichtingen- en Veiligheidsdienst
The General Intelligence and Security Service is the secret service of The Netherlands. It is the successor to the BVD and is active since the restructuring of 29 May 2002.  More  Website  Wikipedia
AT   Agentschap Telecom
Radio Monitoring Service. Responsible for frequency spectrum monitoring, radio licences, and law enforcement against interference and clandestine frequency usage. Formerly known under a variety of names, including RCD, OCZ, and RDR.
 More  Website  Wikipedia
BBO   Bureau Bijzondere Opdrachten
Dutch secret operations executive during WWII. Operated from England under supervision of the Dutch Goverment in exile and directed by the British Special Operations Executive (SOE). After the war dissolved into the stay-behind organisation O&I.  More
BI   Bureau Inlichtingen
Dutch secret intelligence agency during WWII. Operated from England under supervision of the Dutch Government in exile. After the war dissolved into the stay-behind organisation O&I.  More
BNV   Bureau Nationale Veiligheid
Post-WWII Dutch Security Agency and forerunner of the BVD.
BVD   Binnenlandse Veiligheidsdienst
Former name of the Dutch Internal Security Service. Established after WWII as BNV (Bureau Nationale Veiligheid, Bureau for National Security) on 29 May 1945. Renamed to CVD (Centrale Veiligheidsdienst, Central Security Agency) in April 1946. On 8 August 1949 the name was changed to BVD. On 29 May 2002, the agency was reorganized and renamed to AIVD.
CIE   Criminele Inlichtingen Eenheid
Police criminal intelligence unit.
FIOD   Fiscale Inlichtingen en Opsporingsdienst
Fiscal intelligence and investigation service.
IDB   Inlichtingendienst Buitenland
Former Dutch Foreign Intelligence Service.
JSCU   Joint Sigint Cyber Unit
Joint operation of the Dutch intelligence services AIVD and MIVD, tasked with the interception of radio and satellite traffic (SIGINT) and information gathering through cyber-operations. Established on 15 June 2014.  Wikipedia
GOVCERT   Government Computer Emergency Responce Team
GOVCERT.nl is the Dutch center for cyber security. Since 1 January 2012 incorporated into the new NCSC.
KLPD   Korps Landelijke Politiediensten
Dutch National Police Services.  Website
LUID   Luchtmacht Inlichtingendienst
Air Force intelligence service, established in 1951. In 1986 merged with the intelligence services of the Army and Navy into the Military Intelligence Service (MID).
MARID   Marine Inlichtingendienst
Intelligence and Security Service of the Dutch Royal Navy. In 1987 incorporated into the MID (now: MIVD).
MID   Militaire Inlichtingendienst MIVD
Dutch Military Intelligence Service, established in 1987 by merging the intelligence services of the Army, the Air Force and the Navy (MARID). Later renamed to MIVD.
MIVD   Militaire Inlichtingen en Veiligheidsdienst
Military Intelligence and Security Agency.  Website  Wikipedia
NBV   Nationaal Bureau voor Verbindingsbeveiliging
Netherlands National Communications Security Agency (NLNCSA). Responsible for communications security of the Dutch Government. Established in 1960 as the successor to the Code Coordination Bureau (CCB) of 1945. Since 2001 part of the General Intelligence Agency (AIVD).  More  Website
NCSC   Nationaal Cyber Security Centrum
The Dutch National Cyber Security Center, also known as NCSC-NL, is a co-operation between private organisations and the Dutch Goverment. Its main goal is to improve (internet) cyber security and to intervene whenever necessary. Partners are the NCTV, the former GOVCERT.NL, the intellicence service AIVD, the Dutch National Police KLPD and various ministries. The NCSC is controlled by the NCTV.  Website
NCTb   Nationaal Coordinator Terrorismebestrijding NCTV
National Coordinator for Counterterrorism. Renamed to NCTV on 1 July 2011.
NCTV   Nationaal Coordinator Terrorismebestrijding en Veiligheid
National Coordinator for Counterterrorism and Security. Part of the Dutch Ministry of Security and Justice. Formerly (before 1 July 2011) known as NCTb.  Website
NLNCSA   Netherlands National Communications Security Agency NBV
International name of the Dutch Bureau for Communications Security NBV.
NSO   Nationale SIGINT Organisatie
Dutch national organization for communication interception. On 15 Jun2 2014 migrated into the Joint Sigint Cyber Unit (JSCU).  Wikipedia
O&I   Operatiën en Inlichtingen
Operations and Intelligence. Dutch secret stay-behind organisation during the Cold War, from 1946 to 1992. Established after WWII from the remains of the BI and the BBO. Also known as A en B (A and B). Dissolved in 1992.  More
RCD   Radio Controle Dienst AT
Radio Monitoring Service of The Netherlands (now: AT).  More
SIOD   Sociale Inlichtingen- en Opsporingsdienst
Social intelligence and investigation service, responsible for investigations against misuse of the social security system.
SVIC   Strategisch Verbindingsinlichtingen Centrum
Strategic Signals Intelligence Centre is the main traffic analysis and cryptanalysis organisation in the Netherlands. Formerly known as TIVC.  More
THTC   Team High Tech Crime
Department of the Dutch National Police (KLPD), located in Driebergen, responsibile for law enforcement cases in which sophisticated technology is involved, either for committing a crime, or for solving a case.
TIVC   Technisch Informatie Verwerkings Centrum SVIC
Technical Information Processing Centre was the main codebreaking centre of the Dutch Navy. Formerly known as WKC. Since 1996 known as SVIC.  More
ULI   Unit Landelijke Intercpetie
Dutch nationwide interception unit. Central facility of the Dutch National Police (KLPD) for lawful internet tapping (and in some cases telephone tapping as well).
WKC   Wiskundig Centrum
Mathematics Centre was the main codebreaking centre of the Dutch Royal Navy from 1975 to 1982. Succeeded by TIVC.  More
Alliances
Related organisations
NISA   Netherlands Intelligence Studies Association
Dutch non-partisan voluntary studies association that focusses on the work of intelligence and security services and related police services. Membership is by invitation only. (Dutch: Stichting Inlichtingen Studies Nederland).  Website
New Zealand
DDIS   Directorate of Defence Intelligence and Security
Within the Five Eyes alliance, the DDIS is responsible for Defence Intelligence.
GCSB   Government Communications Security Bureau
National security organisation for providing information assurance, cyber security and foreign intelligence to the New Zealand Government, Government Agencies and critical infrastructure organisations. Within the Five Eyes alliance, the GCSB is responsible for Signals Intelligence.  Website
NAB   National Assesments Bureau
Goverment agency for providing independent and impartial assesments on events and development relevant to New Zealand's national security and international relations. The NAB does not collect information itself. Established in 1975 and part of the Department of the Prime Minister and the Cabinet.  Website
NCSC   National Cyber Security Center
National centre for cyber security. Part of GCSB.
NZSIS   New Zealand Security Intelligence Service
Government agency responsible for providing the Government with information about matters related to New Zealand's security. Within the Five Eyes alliance, the NZSIS is responsible for Human Intelligence.  Website
Alliances
Norway
FO/S   Forsvarets Sikkerhetsstab
Former national security authority of Norway. In 2003 succeeded by the NSM.
NSM   Nasjonal Sikkerhetsmyndighet
Norwegian National Security Authority, responsible for preventive national security, ICT security (NorCERT), internal and external threats. Established on 1 January 2003 as the successor to the FO/S.  Wikipedia  Website
Alliances
Poland
ABW   Agencja Bezpieczenstwa Wenetrznego
Polish Internal Security Agency.  Website
AW   Agencja Wywiadu
Polish Foreign Intelligence Agency.  Website
Alliances
Portugal
SIED   Serviço de Informações Estratégicas de Defesa
Portugese Strategic and Defence Intelligence Service  Website
SIS   Serviço de Informações de Segurança
Portugese Security Intelligence Service.  Website
Alliances
Romania
DGSP   General Directorate for the Security of the People
DGPS, more commonly known as the Securitate, was the oppresive secret police agency of the Socialist Republic of Romania, established on 30 August 1948, and active throughout the Cold War. Also known as Departamentul Securităţii Statului (Department of State Security) or DSS.  More
DSS   Departamentul Securităţii Statului
Department of State Security, the secret police force of the former Socialist Republic of Romania. Founded in 1948 as DGSP and dissolved into various organisations from 1991 onwards. Also known as the Securitate.  More
Securitate   Popular name of the Departamentul Securităţii Statului (DSS), the Department of State Security of the former Socialist Republic of Romania. Under president Nicolae Ceauşescu, it was one of the most brutal secret police forces in the world.  More
Spain
CNI   Centro National de Inteligencia
Spanish National Intelligence Center.  Website
Alliances
Sweden
FRA   Försvarets Radio Anstalt
Swedish National Defence Radio Establishment. Responsible for Signals Intelligence (COMINT, SIGINT, ELINT) and support for IT security to government authorities and state-owned copanies.  Wikipedia  Website
Alliances
Russia
For agencies of the former Soviet Union, see → USSR.

Russian internal intelligence and security service
FSB
Russian foreign military intelligence service
GRU
FSB   Federalnaya Sluzhba Bezopasnosti Rossiyskoy Federatsii
Principal security agency of the Russian Federation and main successor to the USSR's Committee of State Security (KGB).  More  Wikipedia
FSO   Federalnaya Sluzhba Okhrany
The FSO, in English known as Federal Guard Service of the Russian Federation, is a federal government agency, responsible for the protection of several high-ranking state officials, including the President of Russia, as well as certain federal properties. It is the successor to the SBP (led by KGB general Alexander Korzhakov) and has its origin in the 9th Chief Directory of the KGB of the former Soviet Union (USSR).  Wikipedia
GRU   Glavonoye Razvedyvatel'noye Upravlenye GU
GU   Glavonoye Upravlenye More
The GU (Russian: ГУ) is the current Russian foreign Military Intelligence Service of the General Staff of the Armed Forces of the Russian Federation. It was established in 1991, after the fall of the Soviet Union, and is the successor to the GRU (Russian: ГРУ). Nevertheless it is still commonly known by its old name GRU.  More  Wikipedia
MVD   Ministerstvo Vnutrennikh Del
Ministry of Internal Affairs - or ministry of the interior – of the Russian Federation. Established (predecessor) in 1802 and one of the successors to the Soviet Union's MKVD.  Wikipedia
SVR   Sluzhba Vneshney Razvedki
Russian Foreign Intelligence Service. It is the successor of the First Chief Directorate (PGU) of the former KGB.  Wikipedia
United Kingdom   UK
CESG   Communications Electronics Security Group NCSC
Renamed to National Cyber Security Centre (NCSC).
CBME   Combined Bureau Middle East
Cover name for the regional Government Code and Cypher School (CG&CS) head­quarters in the Middle East during WWII. Established in May 1941 by Col. Freddie Jacob, and operating from the King Farouk Museum in Heliopolis.
CICI   Combined Intelligence Iraq
The principal British intelligence collection agency in Iraq (and later also Persia), based at Habaniyah and run by RAF officer Robert Dawson-Sheppard.
CIFE   Combined Intelligece Far East
MI5's regional organisation in the Far East during WWII. Established in 1943 at Kandy (Ceylon) by Courtenay Young, who was MI5's only Japanese-speaking officer.
CSDIC   Combined Services Detailed Interrogation Centre
British prisoner of war (POW) interrogation service, also known as MI19, operating during WWII from facilities in the UK and from regional centres in Cairo (Egypt) and Delhi (India).
DI   Defence Intelligence
Organisation withing the UK Minstry of Defence (MoD) that focusses on gathering and analysing military intelligence. Within the Five Eyes alliance, DI is responsible for Defence Intelligence.  Website  Wikipedia
GC&CS   Government Code & Cypher School
UK agency responsible for codebreaking during WWII. Well-know for its activities on breaking Enigma and other ciphers at Bletchley Park. Later renamed to GCHQ.
GCHQ   Government Communications Headquarters
UK Intelligence Agency, responsible for Signals Intelligence (SIGINT) and information insurance. Works with MI 5 and MI 6. Within the Five Eyes alliance, GCHQ is responsible for Signals Intelligence (SIGINT).  More  Website
ISBA   Intelligence Service British Agents
During WWII, ISBA referred to decrypted and translated messages from SIS agents. Such messages were typically given particularly restricted circulation.
ISK   Intelligence Service Knox
During WWII, ISK handled decrypted and translated German spy messages, originally encrypted with an Enigma cipher machine. Named after its head Dylwyn Knox.
ISOS   Intelligence Service Oliver Strachey
During WWII, ISOS handled decrypted and translated German spy messages, originally encrypted manually (e.g. with a codebook). Named after its head Oliver Strachey.
MI 5   Security Service
British Security and Counter Intelligence Service.  Website
MI 6   Secret Intelligence Service (SIS)
British Foreign Secret Intelligence Service (SIS). Responsible for gathering intelligence and counter-intelligence outside the three-mile territorial limits of the British Empire. Within the Five Eyes alliance, MI6 is responsible for Human Intelligence (HUMINT).  Website
NCSC   National Cyber Security Centre
UK centre for cyber security. Part of GCHQ. Formerly known as Communications Electronics Security Group (CESG).  Website
SIS   Secret Intelligence Service MI 6
Within the Five Eyes alliance, the SIS is responsible for Human Intelligence (HUMINT).
SAS   Special Air Service
UK special forces unit, founded during WWII for covert reconnaissance, counter-terrorism, direction action and hostage rescue. Initially founded in 1941 as a regiment. Reconsituted as a corps in 1950.  Wikipedia
SOE   Special Operations Executive
British espionage, sabotage and reconnaissance organisation during WWII, active from 22 July 1940 to 15 January 1946. Also known as Churchill's Secret Army and as the Ministry of Ungentlemanly Warfare. Approx. 13,000 people were involved in the SOE, 3200 of which were women.  Wikipedia
Alliances
United States of America   USA
National Security Agency
NSA
Central Intelligence Agency
CIA
ASA   Army Security Agency
United States Army's intelligence branch from 1945 to 1984, under operational control of DIRNSA. Successor to the Signals Intelligence Service (SIS) (1943-1945). In 1977, ASA was merged with the US Army's Military Intelligence branch to become the United States Army Intelligence and Security Command (INSCOM).  Wikipedia  History
AFSA   Armed Forces Security Agency
Forerunner of the National Security Agency (NSA) that existed from 1949 to 1952.  Wikipedia
CIA   Central Intelligence Agency
Independent US Goverment foreign intelligence agency for gathering national security intelligence. Within the Five Eyes alliance, the CIA is responsible for Human Intelligence (HUMINT).  More  Website  Wikipedia
CTIIC   Cyber Threat Intelligence Integration Center
Federal office for intelligence support in response to significant cyber incidents. Part of the Office of the Director of National Intelligence (DNI).  Website
DAMI   Department of the Army Military Intelligence
Internal, national and foreign intelligence unit of the US Army.  Website
DARPA   Defense Advanced Research Projects Agency
Fundamental research and development institute for breakthrough technologies for national security. Established in 1957 (at the time of the lauch of the Russian Sputnik satellite) and responsible for inventions in the field of stealth technology and DARPANET, which led to the development of the modern internet.  Website
DEA   Drug Enforcement Administration
Federal organisation for the enforcement of controlled substances laws and regulations.  Website
DHS   Department of Homeland Security
US Government department responsible for the (cyber) security and safety of US citizens.  Website
DIA   Defense Intelligence Agency
Military Intelligence Service for the US Department of Defense and the US Intelligence Community. Within the Five Eyes alliance, the DIA is responsible for Defence Intelligence.  Website
DNI   Director of National Intelligence
Head of the Intelligence Community, overseeing and directing the implementation of the National Intelligence Program budget and serving as the principal advisor to the President, the National Security Council and the Homeland Security Council for intelligence matters related to national security.  Website
FBI   Federal Bureau of Investigation
United States federal law enforcement agency, tasked with the investigation of federal (cyber) crime, corruption, terrorism and counterintelligence. Within the Five Eyes alliance, the FBI is responsible for Security Intelligence.  Website  Wikipedia
INSCOM   US Army Intelligence & Security Command
Direct reporting US intelligence gathering organisation within both the US Army and the US National Security Agence (NSA).  Website  Wikipedia
NCPC   National Counterproliferation Center
Central coordination for the protection against weapons of mass destruction. Part of the Office of the Director of National Intelligence (DNI).  Website
NCSC   National Counterintelligence and Security Center
National coordination of the counterintelligence and security activities of the US Government, the US Intelligence Community and the US private sector. Risk analysis on intelligence collection, penetration and attacks by foreign (state) actors and other adversaries. Part of the Office of the Director of National Intelligence (DNI).  Website
NCTC   National Counterterrorism Center
National coordination center for threat analysis and counterterrorism. Part of the Office of the Director of National Intelligence (DNI).  Website
NGA   National Geospatial-Intelligence Agency
Central facility for providing geospacial intelligence to the US military and civil intelligence community. Within the Five Eyes alliance, the NGA is responsible for Geo Intelligence.  Website
NRO   National Reconnaissance Office
Responsible for the design, building and operation of the spy satellites of the US government. Based in Chantilly, Virginia (USA).  Wikipedia
NSA   National Security Agency
Part of the American Department of Defense (DoD). Responsible for the collection and analysis of foreign communications and foreign intelligence, and for the protection of US Government communications. Within the Five Eyes alliance, the NSA is responsible for Signals Intelligence.  More  Wikipedia  Website
ODNI   Office of the Director of National Security DNI
OSS   Office of Strategic Services
The OSS was the principal intelligence agency of the US during WWII. It was established in 1942 and succeeded after the war in 1945 by SSU, which later became CIG and then, in 1947, the CIA as we know it today.  Wikipedia
Secret Service   Also known as United States Secret Service (USSS). Federal law enforcement agency with headquarters in Washington, D.C., established in 1965 to suppress counterfeiting of US currency. Now also responsible for the protection of the nation's current and former leaders. In 2003, the USSS was transferred from the Department of the Treasury to the Department of Homeland Security.  Website  Wikipedia
SIS   Signals Intelligence Service
US Army intercept and codebreaking division throughout World War II. Founded in 1930 and renamed in Signals Security Agency in 1943, and Army Security Agency (ASA) in September 1945. On 20 May 1949, the cryptologic activities were branched-off as AFSA, which became NSA in 1952.  Wikipedia
USIA   United States Information Agency
Former US Agency devoted to broadcasting 'public diplomacy', a.k.a. propaganda, at the hight of the Cold War. The agency existed from 1953 to 1999 and had four divisions. The agency also had a counter-intelligence department that performed bug-sweeps.  Wikipedia
Alliances
Related organisations
NASIH   North American Seciety for Intelligence History
Formed in 2016 with the goal to encourage and support the study of intelligence history in Canada and the United States. Membership is free and is open to anyone.  Website
USSR   Soviet Union
For current Russian agencies, see → Russia.

Russian foreign military intelligence service
GRU
Soviet Committee for State Security
KGB
Cheka   Chrezvychaynaya Komissiaya
The Cheka (Russian: ЧК) was the first Soviet state security organization, created by Lenin on 20 December 1917. Cheka, or Vcheka (Vserossiyskaya Chrezvychaynaya Komissiaya), means All-Russian Extraordinary Commission for Combating Counter-Revolution and Sabotage. The emblem of the organization was shared with the KGB. In 1922 the organisation became part of the NKVD. It was officially dissolved in 1929.  Wikipedia
GRU   Glavonoye Razvedyvatel'noye Upravlenye More
The GRU (Russian: ГРУ) was (is) the Russian Military Intelligence Service. The GRU was established by Lenin on 21 October 1918 and is said to have about six time as many agents as the KGB. In 2010, almost 20 years after the fall of the Soviet Union, it was renamed GU (ГУ), but remained commonly known by its old name GRU (ГРУ).  More  Wikipedia
 see also post-USSR GU
KGB   Komitet Gosudarstvennoy Bezopasnosti More
National Security Agency of the Soviet Union from 1954 to 1991 (Committee for State Security). The KGB was established in 1954 as the direct successor to the Cheka, the NKGB and the MGB, and was a military service that dealt with foreign intelligence, counterintelligence, operative-investigatory activities, guarding the borders of the USSR and guarding the interests of the Central Committee of the Communist Party. After the collapse of the Soviet Union in 1991, the KGB was split into the Federal Security Service (FSB) and the Foreign Intelligence Service (SVR).  More  Wikipedia
MGB   Ministerstvo Gosudarstvennoy Bezopasnoti
Ministry of State Security of the Soviet Union from 1946 to 1953. One of many incarnations of the Soviet State Security apparatus.  Wikipedia
MVD   Ministerstvo Vnutrennikh Del
Ministry of Internal Affairs - or ministry of the interior – was a goverment ministry in the Soviet Union, and one of the successors to the NKVD. Unlike the KGB and MGB, the MVD did not have any secret (political) units or agencies. The ministry was established in 1802 and still exists today.  Wikipedia
NKGB   Narodnyy Komitet Gosudarstvennoy Bezopasnosti
People's Commissariat for State Security between 1931 and 1946. The NKGB was the Soviet Secret Police, intelligence and counter-intelligence agency from 3 February to 20 July 1941, and again from 1943 to 1946, before being renamed Ministry for State Security (MGB). It is one of the predecessors of the KGB.  Wikipedia
NKVD   Narodnyy Komissariat Vnutrennikh Del
People's Commissariat for Internal Affairs between 1934 and 1946. The NKVD was a law enforcement agency of the former Soviet Union that executed the rule of power of the Communist Party. It was closely associated with the Soviet Secret Police and is particularly known for its political repression and mass executions during Joseph Stalin's reign.  Wikipedia
PGU   Pervoye Glavnoye Upravleniye
First Chief Directorate (foreign intelligence) of the KGB, established in 1954. Following the dissolution of the Soviet Union in 1991, the PGU was succeeded by the SVR.  Wikipedia
SMERSH   Spetsyalnye Metody Razoblacheniya Shpyonov
SMERSH (Russian: СМЕРШ) was the umbrella name of three independant Russian counter-intelligence agencies of the Red Army, between 1943 and 1946. The name SMERSH is an acronym which means 'Special Methods for Spy Detection'. Being operational during WWII, its main goal was to subvert German attempts to infiltrate the Red Army.  Wikipedia
Alliances
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